My Rating for the Feet ***
Roller foot
Pro.: Use for leather, and vinyl
Cons. tried to use for knits, and it doesn't work.
Teflon foot
Pro: Use for vinyl and leather with sticky surfaces
Cons: The fabric is not moving straight with the Teflon foot
Recommendations
* The Straight foot and Leveling foot can sew vinyl
as well as leather and knits.
* The fabric is too sticky, put tape under the sewing foot
These feet are from the set of 42 psc, not the expensive ones